About to have double mastectomy no reconstruction - any tips?

Thank you TonyaM, Julez1958 and Lispy for your helpful advice :) I am taking everything onboard, I was determined to try to get a bit fitter and lose a KG or two before surgery, but really bad plantar fasciitis has put a stop to my walking and going to the gym :( my dog isn't happy about the lack of walking. I guess I will just try again after surgery and recovery.